Hi there,Had to restore my iPhone3Gs after my son set a passcode on it that I couldn't unlock. Got back my software, music, text messages and some of my Handbase databases but my main activity database which I foolishly haven't separately backed up in far too long is completely missing. I can't work out why this one database should be missing. Is there any way I can find old copies of the file in my iPhone backup data or somewhere?very grateful for any help!!

Sorry to hear of your recent headaches. I'm sure this whole debacle must be incredibly frustrating. Maybe some of us with young kids will learn from this experience to passcode lock our devices before someone else gets hold of them

The iPhone backups should contain the PDB files, but it's a big compressed file and iTunes does not provide a way to randomnly search for specific files. Assuming you didn't have the encryption option for the backups turned on (it's off by default) you can get to those files using a third party tool:

Here are tips and steps about how to extract iPhone backup via iTunes.Don’t sync iPhone with iTunes first if you want to restore your iPhone. Because iTunes only updates the backup file every time you sync with it, not to build a new backup file.Connect your iPhone to the computer and launch iTunesRight-Click on the iPhone and select “Restore from Backup”Choose the appropriate backup you want to restoreClick ‘Restore’ to start the process to recover from that backupIf you don't success, you can try to use iPhone Data Recovery or other tool.